In the end ,it's a matter of personal choice,however, I wondered about the general feeling of club members about clean up of our older or used instruments.My Elan is 21 years old, and has the usual traits ,minor surface scratchs(rendered nearly invisible w/carnuba wax),and a patena(?) on the bridge. I have seen some threads about polishing the brass parts but have not tried it.I am aware that in a lot of circles this kind of cleanup on an older instruments is discouraged.Question...to clean and buff, or just leave it alone? Opinions wanted. Thanks , Karl